SMA tri power inverta

P

powervan

15000TL keeps putting out main breaker 32amp type C ! wired in 4 mm flex about 5mtrs long! DC side checks out ok! grid voltage 240volt displayed on inverta / 415v at inverta ! any ideas why breaker would trip every now and then!!
 
We've had it a Hager breakers in dedicated PV DB's trip for no obvious reason, if they tripped more than twice for no apparent reason we replaced them (with the same spec and make) and not had a problem since. Didn't bother exploring why further.. our Doepke installs have never suffered this issue. (Speak to Andy at Sibert )
 

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